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What will be the resistance measured by an ohmmeter, if a p-n diode is reverse biased?

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in Physics – Class 12 by (135k points)
What will be the resistance measured by an ohmmeter, if a p-n diode is reverse biased?

(a) Zero

(b) Low

(c) High

(d) Infinite

This question was posed to me in an online interview.

I'm obligated to ask this question of Semiconductor Electronics in portion Semiconductor Electronics : Materials, Devices and Simple Circuits of Physics – Class 12

1 Answer

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Right answer is (c) High

Easy explanation: When a p-n diode is reverse biased, it offers high resistance. Forward biasing of p-n junction diode offers low resistance. In the case of an ideal p-n junction, resistance is zero. So, the ohmmeter can measure zero resistance.

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